(Android™) PDF File Encoding to Base64

Demonstrates how to encode a PDF file to base64, and then decode.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    CkBinData pdfData = new CkBinData();

    boolean success = pdfData.LoadFile("qa_data/helloWorld.pdf");
    if (success != true) {
        Log.i(TAG, "failed to load PDF file.");
        return;
        }

    // Encode the PDF to base64
    // Note: to produce base64 on multiple lines (as it would appear in the MIME of an email),
    // pass the string "base64_mime" instead of "base64".
    String b64 = pdfData.getEncoded("base64");
    Log.i(TAG, b64);

    // Decode from base64 PDF.
    CkBinData pdfData2 = new CkBinData();
    pdfData2.AppendEncoded(b64,"base64");
    success = pdfData2.WriteFile("qa_output/helloWorld2.pdf");
    if (success != true) {
        Log.i(TAG, "failed to write PDF file.");
        return;
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}